The growth of the Emerald City Con interests me because it seems to be organically grown from a smaller, more modest convention, rather than launched by the Wizard folks. It makes a certain amount of sense for there to be a comic book convention in the Northwest because of proximity to sizeable professional communities in Portland and Seattle. Seattle makes sense because you can easily daytrip there from Vancouver B.C. and Portland, the whole region is isolated enough people might be willing to drive in a few hours for something that doesn't involve a plane, and you can draw on a likely local casual crowd attuned to comics' slight resurgence as an at-least acceptable youth totem. Plus, Seattle is a fun place to visit, and offers convention facilities somewhere other than its airport.